James Spears said he and David Chandler went downtown to buy drugs Oct. 28, 2010, before the shooting occurred.

He told jurors that Ricardo Woods, who's charged with murder in the shooting, had threatened Chandler before.

Spears told jurors that Woods was known by the street name, "O," which is the name prosecutors say Chandler identified by blinking in videotaped interviews with police.

Before his death, Chandler was paralyzed and unable to speak due to injuries from the shooting.

But defense attorneys asked Spears why he'd never mentioned Woods' name to police.

"In your statement to police you were giving them as much information as you could to try to catch who it was that did this, correct?" defense attorneys said. "And at no time, not once in your 30-somewhat pages of transcripts, minutes and minutes of interview, do you ever mention Mr. Chandler having some contact with an individual by the name of Ricardo Woods, do you?"

Spears admitted he did not tell police about someone called O texting threats to Chandler.

The blink video, which a judge allowed following months of legal wrangling, could be shown as early as Monday.